Honestly if the cube is only stored upright that's the best way to ensure it's safety. There is no pressure on the top screws when the cube is vertical. If you slide the inner components out with the cube standing up you will never damage it or risk cracking the cube. It's when you put the computer on it's side causes the top screws to bear the entire load of the chassis and components therefore introducing the possibility of cracking the acrylic. Just my experience with them.